Stator and rotor dispensing device

Abstract

The utility model relates to point gum equipment technical field, and disclose a fixed rotor point gum device, including glue outlet layer, installation layer and glue storage layer, the installation layer sets up between glue outlet layer and glue storage layer, the installation layer inside installation has point gum device, and the upper portion of glue outlet layer is provided with point gum groove, the point gum groove is distributed with several glue outlet holes and reflux hole, and the reflux hole is communicated with reflux pipe, and the reflux pipe penetrates glue outlet layer, installation layer and glue storage layer, and a plurality of reflux pipes are commonly communicated with main return pipe. The fixed rotor point gum device, the excess glue in point gum groove is rapidly entered into reflux pipe network through the bottom distribution several reflux holes, and is finally concentrated and efficiently recycled through the coaxially arranged main return pipe. This multichannel reflux design replaces the traditional single central reflux hole, greatly improves the recovery efficiency of high viscosity glue, effectively avoids the retention, accumulation and solidification blockage problem of glue in point gum groove, especially the edge area, guarantees the long-term continuous operation of the system.

Description

Technical Field

[0001] This utility model relates to the field of dispensing equipment technology, specifically to a stator and rotor dispensing device. Background Technology

[0002] In the field of motor stator and rotor core manufacturing, traditional riveting and welding processes are widely used, but they have significant drawbacks. These mechanical connection methods can damage the integrity of silicon steel sheets, leading to insulation damage and consequently, significant eddy current losses, thus reducing motor efficiency. Furthermore, the minute gaps between the laminations can generate vibration and noise during high-frequency operation; actual measurements show that noise levels can increase by more than 15 dB, severely impacting motor performance.

[0003] To overcome these shortcomings, adhesive bonding technology emerged and has demonstrated significant advantages. This technology can completely preserve the insulation layer of silicon steel sheets, effectively reducing eddy current losses; by filling the gaps between the laminations with adhesive, a uniform adhesive layer ensures the concentricity of the iron core; and the adhesive layer filling rate of up to 95% also improves thermal conductivity, resulting in a core temperature drop of up to 20°C and significantly extending the motor's lifespan.

[0004] However, existing adhesive bonding technologies continuously inject adhesive from the injection hole at the bottom of the adhesive reservoir using external pressurization equipment, maintaining a constant pressure. The adhesive is evenly distributed through the annular groove of the mounting layer and enters the dispensing device through the dispensing hole. However, the central reflux hole design has low recycling efficiency for high-viscosity adhesives, and adhesive tends to accumulate and solidify in the dispensing groove far from the center, which can cause blockages if left untreated for a long time. This also requires machine shutdown, disassembly, and cleaning, making the operation cumbersome.

[0005] Therefore, we propose a stator-rotor dispensing device to solve the problems mentioned above. Utility Model Content

[0006] This utility model provides a stator and rotor dispensing device, which can solve the problems of existing adhesive bonding technology that continuously injects glue from the glue injection hole at the bottom of the glue storage layer and maintains constant pressure through external pressure equipment. However, the central return hole design has low recycling efficiency for high viscosity glue, and glue accumulation and solidification are prone to occur in the dispensing tank far from the center. Long-term retention will solidify and block the glue.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] A stator and rotor dispensing device includes a dispensing layer, an mounting layer, and a dispensing storage layer. The mounting layer is disposed between the dispensing layer and the dispensing storage layer. A dispensing device is installed inside the mounting layer, and a dispensing groove is provided on the upper part of the dispensing layer.

[0009] The dispensing tank has several dispensing holes and return holes. The return holes are connected to return pipes, which pass through the dispensing layer, the mounting layer, and the dispensing storage layer. Multiple return pipes are connected to the main return pipe.

[0010] The glue storage layer includes a bottom box and a top cover. An opening and closing mechanism is provided between the bottom box and the top cover. A glue injection hole is provided at the bottom of the bottom box, and a multi-directional flow channel is provided inside the bottom box.

[0011] Preferably, the opening and closing mechanism includes a support ring, which is fixedly connected to the outside of the upper cover. The support ring is connected to a quick-lock assembly, which is used for quick opening and closing between the bottom box and the upper cover.

[0012] Preferably, the quick-lock assembly includes an electric telescopic rod and a locking plate, wherein the housing of the electric telescopic rod is fixedly connected to the support ring, and the telescopic end of the electric telescopic rod is rotatably connected to the locking plate.

[0013] Preferably, the bottom of the base box is provided with a positioning hole, and a positioning pin is fixedly connected to the end of the locking plate away from the electric telescopic rod, and the positioning pin is adapted to the positioning hole.

[0014] Preferably, the outer edge of the bottom box is provided with multiple raised rings, and the top cover is provided with multiple sealing grooves that are adapted to the raised rings, and a sealing gasket is installed inside the sealing groove.

[0015] Preferably, both the bottom box and the top cover are circular, an annular channel is provided between the bottom box and the top cover, and an injection tube is fixedly connected inside the bottom box.

[0016] Preferably, the glue injection tube is coaxially arranged with the main return tube and passes through the inside of the main return tube.

[0017] Preferably, the dispensing device includes a base and a dispensing head, which are fixedly connected to both ends of the dispensing device. The diameters of the base and the dispensing head are smaller than those of the dispensing device. The dispensing device is installed inside the mounting layer. The base is fixed to the top cover of the glue storage layer with an interference fit and is connected to the inside of the annular channel. The dispensing head is located inside the glue outlet hole.

[0018] Preferably, the dispensing device has an adhesive channel inside, and each dispensing device has a self-regulating micro-pressure regulating valve installed on the adhesive channel to ensure that the dispensing pressure of the dispensing devices is the same and the adhesive is dispensed synchronously.

[0019] Preferably, a fastening bolt is installed on the dispensing layer, and the fastening bolt penetrates the mounting layer and extends to the top cover of the dispensing layer.

[0020] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0021] This utility model's external pressurization device injects adhesive into the adhesive storage layer through a circular array of injection holes. The adhesive first enters the annular channel between the bottom box and the top cover, forming a uniform circulation. Combined with the multi-directional guide grooves of the bottom box, this fundamentally ensures pressure balance at the inlet of each dispensing device within the annular channel, serving as the basis for consistent adhesive dispensing volume. The adhesive then enters each dispensing device, where a self-regulating micro-pressure regulating valve automatically maintains a constant working pressure. This ensures that all dispensing heads can dispense adhesive synchronously, at equal pressure, and precisely at designated positions on the silicon steel sheets, thereby guaranteeing the uniformity of bonding and overall quality of the iron core laminations.

[0022] After dispensing, the system significantly improves the efficiency of handling residual adhesive. Excess adhesive in the dispensing tank quickly enters the return pipe network through several return holes distributed at its bottom, and is finally collected and efficiently recycled via the coaxial main return pipe. This multi-channel return design replaces the traditional single central return hole, greatly improving the recycling efficiency of high-viscosity adhesives and effectively avoiding the problems of adhesive retention, accumulation, and curing blockage in the dispensing tank, especially in the edge areas, ensuring the long-term continuous operation of the system.

[0023] In terms of equipment maintenance, the adhesive storage layer employs a quick-opening mechanism driven by an electric telescopic rod. This, combined with the multi-layered seal formed by the multi-layered raised rings on the outer edge of the base box and the sealing gasket within the sealing groove of the upper cover, allows for quick and convenient opening and sealing closure when cleaning is required. This not only greatly simplifies the cleaning process for solidified or clogged adhesive, reducing downtime, but its reliable sealing also completely prevents adhesive leakage under high-pressure operating conditions. The entire system is monitored and intelligently adjusted in real time through a pressure sensor network, ensuring synchronized and stable operation of each unit. This achieves a high-precision, high-efficiency, and easy-to-maintain iron core bonding solution while maintaining the integrity of the silicon steel sheet insulation layer and reducing eddy current losses. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0025] Figure 2 This is a side sectional view of the present invention.

[0026] Figure 3 This is a schematic diagram of the bottom structure of the unfolded structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the upper structure of the unfolded structure of this utility model.

[0028] The components are as follows: 1. Glue dispensing layer; 2. Mounting layer; 3. Glue storage layer; 4. Glue dispensing device; 5. Glue dispensing trough; 6. Glue dispensing hole; 7. Return hole; 8. Return pipe; 9. Main return pipe; 10. Base box; 11. Top cover; 13. Glue injection hole; 14. Support ring; 16. Electric telescopic rod; 17. Locking plate; 18. Positioning hole; 19. Positioning pin; 23. Annular channel; 24. Glue injection tube; 25. Base; 26. Glue dispensing head; 29. ​​Fastening bolt. Detailed Implementation

[0029] The specific embodiments of this utility model are described in detail below, but it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.

[0030] Example 1:

[0031] Please see Figure 1-4 The present invention provides the following technical solution:

[0032] The stator and rotor dispensing device 4 includes a dispensing layer 1, a mounting layer 2, and a dispensing layer 3. The mounting layer 2 is disposed between the dispensing layer 1 and the dispensing layer 3. The dispensing device 4 is installed inside the mounting layer 2. A dispensing groove 5 is provided on the upper part of the dispensing layer 1, and a plurality of dispensing holes 6 are distributed on the dispensing groove 5. The dispensing layer 3 includes a bottom box 10 and a top cover 11. An opening and closing mechanism is provided between the bottom box 10 and the top cover 11. The opening and closing mechanism allows for quick and convenient opening and closing of the bottom box 10 and the top cover 11 of the dispensing layer 3, facilitating the solidification or... The blockage of the adhesive is cleared quickly and efficiently. The bottom of the base box 10 is equipped with an injection hole 13, and the interior of the base box 10 is equipped with multi-directional guide channels. Through the injection hole 13 and the multi-directional guide channels of the base box 10, the adhesive storage layer 3 is quickly and evenly injected, ensuring the fluidity of the adhesive. After the dispensing is completed, the adhesive in the base box 10 is evacuated, which solves the problem of poor adhesive fluidity in the dead zone of the adhesive storage layer 3 and the problem of solidification and blockage due to long-term retention. It also solves the problem of uneven pressure distribution when the external pressure equipment supplies adhesive, which causes the amount of adhesive dispensed from the edge dispensing head 26 to be less than that from the center.

[0033] The dispensing tank 5 has several dispensing holes 6 and return holes 7. The return holes 7 are connected to a return pipe 8. The return pipe 8 passes through the dispensing layer 1, the mounting layer 2 and the storage layer 3. Multiple return pipes 8 are connected to a main return pipe 9.

[0034] The above solution addresses the problem of low recycling efficiency of high-viscosity adhesives in the existing central reflux hole 7 design. Adhesives tend to accumulate and solidify in the dispensing tank 5, which is far from the center. The excess liquid adhesive in the dispensing tank 5 is quickly refluxed and discharged through several reflux holes 7, reducing the retention inside the dispensing tank 5 and preventing it from solidifying.

[0035] Furthermore, the opening and closing mechanism includes a support ring 14, which is fixedly connected to the outside of the upper cover 11. The support ring 14 is connected to a quick-lock assembly, which is used for quick opening and closing between the bottom box 10 and the upper cover 11. The quick-lock assembly includes an electric telescopic rod 16 and a locking plate 17. The housing of the electric telescopic rod 16 is fixedly connected to the support ring 14, and the telescopic end of the electric telescopic rod 16 is rotatably connected to the locking plate 17.

[0036] In the above scheme, the support ring 14 is fixedly connected to the outside of the upper cover 11 to maintain stability. The support ring 14 provides stable support for the electric telescopic rod 16. The locking plate 17 is pushed by the telescopic end of the electric telescopic rod 16. The locking plate 17 moves along the axial direction of the upper cover 11. The bottom of the bottom box 10 is provided with a positioning hole 18. The end of the locking plate 17 away from the electric telescopic rod 16 is fixedly connected with a positioning pin 19. The positioning pin 19 is adapted to the positioning hole 18.

[0037] When the base box 10 is installed and fixed, the electric telescopic rod 16 extends and pushes the locking plate 17 away from the top cover 11, and the locking plate 17 drives one end of the positioning pin 19 to rotate to the outside of the electric telescopic rod 16, placing the base box 10 between multiple electric telescopic rods 16. Then, the locking plate 17 drives one end of the positioning pin 19 to rotate to the inside of the electric telescopic rod 16, while the telescopic end of the electric telescopic rod 16 retracts, driving the locking plate 17 to move closer to the base box 10, locking the positioning pin 19 with the positioning hole 18 on the base box 10. Multiple sets of positioning pins 19 and positioning holes 18 are arranged in a circumferential array, thereby stably locking the base box 10 and the top cover 11. The outer edge of the base box 10 is provided with multiple protruding rings, and the top cover 11 is provided with multiple sealing grooves that are adapted to the protruding rings. A sealing gasket is installed inside the sealing groove.

[0038] The multi-layered raised rings on the bottom box 10 cooperate with the sealing groove of the top cover 11 to form a multi-layered seal, preventing the leakage of the adhesive inside the adhesive storage layer 3.

[0039] Example 2:

[0040] Please see Figure 1-4 Furthermore, in conjunction with Example 1, we obtain that,

[0041] Both the bottom box 10 and the top cover 11 are circular, and an annular channel 23 is provided between the bottom box 10 and the top cover 11. A glue injection tube 24 is fixedly connected inside the bottom box 10. Glue is injected into the annular channel 23 through the glue injection tube 24. The glue flows inside the annular channel 23, so that the pressure and glue output of each glue dispensing device 4 are the same, which fundamentally solves the problem of uneven pressure caused by traditional single-point glue dispensing.

[0042] The glue injection pipe 24 and the main return pipe 9 are coaxially arranged so that both the glue injection pipe 24 and the main return pipe 9 are located at the center of the glue storage layer 3, so that each return pipe 8 can quickly flow to the central main return pipe 9 for collection and recycling.

[0043] The glue injection tube 24 passes through the inside of the main return pipe 9 and enters the bottom box 10, thereby achieving uniform glue injection into the annular channel 23 and ensuring pressure balance.

[0044] The dispensing device 4 includes a base 25 and a dispensing head 26. The base 25 and the dispensing head 26 are fixedly connected to both ends of the dispensing device 4. The diameter of the base 25 and the dispensing head 26 is smaller than that of the dispensing device 4. The dispensing device 4 is installed inside the mounting layer 2. The base 25 is fixed to the upper cover 11 of the glue storage layer 3 by interference fit and is connected to the inside of the annular channel 23. The dispensing head 26 is located inside the glue outlet hole 6.

[0045] The dispensing tube 24 extends through the interior of the main return tube 9 to the bottom box 10. This coaxial nested structure ensures that dispensing and return do not interfere with each other. The residual adhesive collected by each return tube 8 flows quickly to the central main return tube 9, achieving efficient centralized recycling. This improves the recycling efficiency of high-viscosity adhesives and avoids the problem of residual adhesive retention in the edge areas caused by the traditional single central return hole 7, effectively preventing the adhesive from curing and clogging within the system.

[0046] The dispensing device 4 is equipped with an adhesive channel inside. Each dispensing device 4 has a self-regulating micro-pressure regulating valve installed on its adhesive channel to ensure that the dispensing pressure of the dispensing device 4 is the same and that the dispensing is synchronized.

[0047] Each dispensing device 4 is equipped with a self-regulating micro-pressure regulating valve for its internal adhesive channels. These valves automatically adjust the adhesive pressure in each channel, ensuring that all dispensing heads 26 maintain the same dispensing pressure and dispensing time. The dispensing device 4 employs an interference fit between the base 25 and the adhesive storage layer 3, with the dispensing head 26 precisely positioned within the dispensing hole 6. This design ensures both sealing and dispensing accuracy. The self-regulating micro-pressure regulating valve structure is existing technology.

[0048] The dispensing layer 1 is equipped with fastening bolts 29, which penetrate the mounting layer 2 and extend to the top cover 11 of the glue storage layer 3. The dispensing layer 1, the mounting layer 2, and the glue storage layer 3 are fixedly connected by the fastening bolts 29.

[0049] The working principle of the stator and rotor dispensing device 4 is as follows: An external pressurizing device injects adhesive into the adhesive storage layer 3 through multiple dispensing holes 13 arranged in a circular array. The adhesive first enters the annular channel 23 between the bottom box 10 and the top cover 11, forming a uniform circulation. Through the dispensing method of the dispensing holes 13 in the bottom box 10 and the multi-directional guide grooves, the pressure of each dispensing device 4 in the annular channel 23 is balanced. The adhesive then enters each dispensing device 4 through the outlet holes 6 of the mounting layer 2. The self-regulating micro-pressure regulating valve inside each dispensing device 4 automatically maintains a constant working pressure, ensuring that the dispensing head 26 accurately dispenses adhesive at the designated position on the silicon steel sheet. After dispensing, residual adhesive enters the return pipe network 8 through the return holes 7 distributed at the bottom of each dispensing tank 5, and is finally collected and recycled through the coaxial main return pipe 9. This multi-channel recycling system significantly improves the recycling efficiency of high-viscosity adhesive. The adhesive storage layer 3 adopts a quick-opening mechanism driven by an electric telescopic rod 16 and a multi-layer sealing design, combined with a periodic automatic cleaning program, to achieve rapid maintenance and cleaning. The entire system is monitored and adjusted in real time through a pressure sensor network to ensure that each dispensing unit works synchronously and stably, thereby achieving high-precision and high-efficiency bonding of iron core laminations while maintaining the integrity of the silicon steel sheets.

[0050] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A stator and rotor dispensing device (4) comprising a glue dispensing layer (1), a mounting layer (2) and a glue storage layer (3), characterized in that: The installation layer (2) is arranged between the glue discharge layer (1) and the glue storage layer (3), and the glue dispensing device (4) is arranged in the installation layer (2); the upper part of the glue discharge layer (1) is provided with a glue dispensing groove (5); A plurality of glue discharge holes (6) and backflow holes (7) are arranged on the glue dispensing groove (5), the plurality of backflow holes (7) are uniformly arranged in the glue dispensing groove (5), the backflow holes (7) are communicated with backflow pipes (8), the backflow pipes (8) penetrate through the glue discharge layer (1), the installation layer (2) and the glue storage layer (3), and the plurality of backflow pipes (8) are commonly communicated with a main backflow pipe (9); The glue storage layer (3) comprises a bottom box (10) and an upper cover (11), and an opening and closing mechanism is arranged between the bottom box (10) and the upper cover (11); the bottom of the bottom box (10) is provided with a glue injection hole (13), and a multidirectional flow guide groove is arranged in the bottom box (10).

2. The stator-rotor dispensing device (4) according to claim 1, characterized in that: The opening and closing mechanism comprises a supporting ring (14) fixedly connected to the outside of the upper cover (11), and a quick locking assembly connected to the supporting ring (14) is used for quickly opening and closing the bottom box (10) and the upper cover (11).

3. The stator-rotor dispensing device (4) according to claim 2, characterized in that: The quick locking assembly comprises an electric telescopic rod (16) and a locking plate (17), the housing of the electric telescopic rod (16) is fixedly connected with the supporting ring (14), and the telescopic end of the electric telescopic rod (16) is rotationally connected with the locking plate (17).

4. The stator-rotor glue dispensing device (4) according to claim 3, characterized in that The bottom of the bottom box (10) is provided with a positioning hole (18), and the end of the locking plate (17) away from the electric telescopic rod (16) is fixedly connected with a positioning pin (19) matched with the positioning hole (18).

5. The stator-rotor glue dispensing device (4) according to claim 3, characterized in that: The outer edge of the bottom box (10) is provided with a plurality of convex rings, a plurality of sealing grooves matched with the convex rings are arranged on the upper cover (11), and sealing pads are arranged in the sealing grooves.

6. The stator-rotor glue dispensing device (4) according to claim 5, characterized in that The bottom box (10) and the upper cover (11) are both circular, an annular channel (23) is arranged between the bottom box (10) and the upper cover (11), and a glue injection pipe (24) is fixedly connected to the inside of the bottom box (10).

7. The stator-rotor glue dispensing device (4) according to claim 6, characterized in that The glue injection pipe (24) is coaxially arranged with the main backflow pipe (9) and penetrates through the inside of the main backflow pipe (9).

8. The stator-rotor glue dispensing device (4) according to claim 7, characterized in that The glue dispensing device (4) comprises a base (25) and a glue dispensing head (26), the base (25) and the glue dispensing head (26) are fixedly connected to the two ends of the glue dispensing device (4) respectively, the diameters of the base (25) and the glue dispensing head (26) are smaller than that of the glue dispensing device (4), the glue dispensing device (4) is arranged in the installation layer (2), the base (25) is fixedly connected to the upper cover (11) of the glue storage layer (3) in an interference fit and is communicated with the inside of the annular channel (23), and the glue dispensing head (26) is arranged in the glue discharge hole (6).

9. The stator-rotor dispensing device (4) according to claim 1, characterized in that: Glue liquid channels are arranged in the glue dispensing device (4), a self-operated micro-pressure regulating valve is arranged on the glue liquid channel of each glue dispensing device (4), so that the glue dispensing devices (4) have the same glue discharge pressure and discharge glue synchronously.

10. The stator-rotor dispensing device (4) according to claim 1, characterized in that: The glue discharge layer (1) is provided with a fastening bolt (29) penetrating through the installation layer (2) and extending to the upper cover (11) of the glue storage layer (3).

Images